I stopped just before entering Lorule Castle. I believe I am close of the end, unless the game decides to throw an unexpected twist I am (and want to still be) blissfully unaware of. I am slowly trying to find the Maiamai. I mostly use ALBW to fight streetpasses when I am feeling bored.
I do plan to complete it but I am trying to get all collectibles before the final confrontation. Better tunic and stuff is eluding me so far.